Meghan Markle is four months pregnant with twin girls, claims an American magazine.

The Duchess of Sussex and Prince Harry are reportedly expecting not just one child after tying the knot back in May, they are set to welcome two.

According to In Touch, the former Suits actress got pregnant immediately following her wedding at Windsor Castle in May during their honeymoon. They also claim that the royal family have confirmed the news.

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Coach Core Awards held at Loughborough University on September 24, 2018 in Loughborough, England (Image: Samir Hussein/Samir Hussein/WireImage)

"They got lucky on their honeymoon

"They're so excited.

"Especially Harry," an insider told the US publication.

The source continued to say that it has been a dream for Prince Harry: "Becoming a father is something he has talked about from an early age, and now that's actually happening. He's saying its a dream come true.'